Positive pressure-release for clothes-wringers



APPLICATION FILED APR-16. 1918.

Patented Feb. 15, 1921.

lllllli b a REA P. WRIGHT, OF WASHINGTON, IDIS'IRIG'l. OF COLUMBIA.

POSITIVE PRESSURE-RELEASE FOR CLOTHES-WRINGERS.

Specification of Letters Patent.

Patented Feb. 15, 19211.

Application filed. April 16, 1918. Serial No. 228,882.

T 0 all whom it may concern:

Be it known that I, REA P. WRIGHT, a citizen of the United States, residin in the city of Washington, District of C flumbia, have invented certain new and useful Improvements in Positive Pressure-Releases for Clothes-Wringers, of which the following is a specification, reference being had therein to the accompanying drawing.

This invention relates to certain new and useful improvements in clothes wringers and more particularly to a pressure release therefor, the object being to provide a pressure release which is positive in action so as to separate the rolls and hold the rolls separated to enable the foreign ob ect drawn between the same to be readily removed.

Another object of my invention is to provide a pressure release in which awedgmg member is mounted adjacent the b1te of the rolls in such a manner that when the rolls have separated abnormally the -wedging member will be drawn between the rolls by the rotation thereof so as to separate the rolls, means being provided for simultaneously releasing the pressure.

Another object of the invention is to provide a construction of pressure release which can be readily attached to the ordinary form of clothes wringer now in use and one in which means are provided for initially moving the wedging member into the bite of the rolls so that the continuous movement will be obtained by the rotation of the rolls.

Other and further objects and advantages of the invention will be hereinafter set forth and the novel features thereof defined by the appended claims.

Inthe drawings:

Figure 1 is a side elevation of a clothes wringer showing the application of my improved construction of pressure release thereto; 3

Fig. 2 is an enlarged section taken on line 2-2 of Fig.. 1;

Fig. 3 is a detail View showing the construction in connection with the top bar for allowing initial free movement; and

Fig. 4 is a detail section showing a slightly modified form. v

Like numerals of reference refer to like parts in the several figures of the drawing.

In the drawing 1 indicates the frame of a clothes wringer which is provided with superposed .pressure rolls 2 and 3 provided with meshing gears4 and 5, the gears 41 bemg carried y a driving shaft 6 b means of which the rolls are rotated. ounted with n the frame above the upper pressure roll 1s. pressure means 7 consisting of the usual coil spring and pressure bar. The pressure is adjusted by pressure screws 8 carried by a movably mounted top bar 9. The slde bars of the wringer frame are preferably slotted in which slots the top bar 9 1s movably mounted, and as herein shown, the top bar 1s provided with angled keepers 10 adapted to be engaged by slidably mounted members 11 carried by the angled ends 12 of plvotally mounted levers 13 which are plvoted on studs 14 carried by the side bars 1 of the wringer frame, said levers bemg connected together by a bar 15 so that they w1l1 work in unison.

he members 11 are slidably mounted on the angled ends of the levers 13, as clearly shown in Fig. 3, in order to allow the levers .a slight movement whereby the friction is reduced and the levers are allowed a freer movement than they would have if they were in engagement with the keepers. The use of slidably mounted members, however, is not essential as the device will operate without the same, but I have found in experimentin that easier movement can be obtained w en such members are used. The lower end of the levers 13 are provided with enlarged wedge shaped portions 16 terminatmg in reduced portions 17 which are adapted to normally be held in such position that when the rolls are separated abnormally the reduced portion will pass between the rolls and be drawn between the same by the rotation of the rolls as the members are formed wedging a spreadmg efi'ect will be obtained upon the rolls so as to lift the upper roll. As the lower end of the lever moves inwardly the upper end moves outwardly so as to move slidably mounted member carried thereby out of engagement with the keepers carried by the top bar and the top bar is released so as to release the pressure from the pressure rolls.

In Fig. 4 I show a slightly-modified form in which a segmental wedge shaped member 19 is slidably mounted on a pin 20 carried by each of the side bars of the wringer frame and normally arranged in such a position that the point thereof will be in position to pass between the rolls when they areabnormally separated. The members 19 are provided with slots 21 through which the pins 20 pass and have pivotally connected thereto, levers 22 pivotally mounted at 23 on the side bars of the wringer frame. The coil spring 24 is connected to the lever so as to, give the initial movement to the wedge shaped member .on the abnormalseparation of the rolls. A releasing rod 25 is connected to the free end of the lever 22 which is adapted to cooperate with any of the well known rollin means now in use on clothes wringers to rel ease the top bar as the \vedging member is drawn between the rolls.

From the foregoing description, it will be seen that I have provided a pressure release in which a wedging member is mounted adjacent the pressure rolls of a clothes wringer 1n such a manner that the same is drawn between the rolls on the abnormal separation thereof by the rotation of the rolls so as to force the rolls apart and hold the rolls in separated position whereby a positive separation of the rolls is obtained on the abnormal separation thereof. It will also be seen that in connection with the means for separating the rolls I have provided means for releasing the pressure on the rolls. It will also be seen that by the construction hereinshown and described, the rolls can be held separated so as to operate on thick goods such as blankets and the like I claim:

1. A clothes wringer, comprising a frame having pressure rolls and pressure means for said rolls mounted therein, a top bar movably mounted in. said frame having means for adjusting said pressure means, pressure retaining means for holding said top bar in predetermined position within said frame, and a wedging member mounted in the bite of said pressure rolls adapted to be drawn between said pressure rolls on the abnormal separation thereof by the rotation of said rolls and having connection with the retaining means for releasing said pressure retaining means.

2. A clothes wringer, comprising a frame having pressure rolls andpressure means for said rolls mounted therein, a top bar movably mounted in said frame having means for adjusting said pressure means, levers mounted on said frame having means for holding said top bar in predetermined position, and wedging members earned by said levers and adapted to be drawn between said rolls by the rotation thereof on the abnormal separation of said rolls for moving said levers in position to release said top bar.

3. A clothes wringer, comprising a frame having pressure rolls and pressure means masses for said rolls mounted therein, a top bar movably mounted 1n said frame, retaining means for holding said top bar in predetermined position within said frame, a wedging- 4. A clothes wringer, comprising a frame having pressure rolls and pressure means for said rolls mounted therein, a top bar movably mounted in said frame having means for adjusting said pressure means, keepers carried by said top bar, levers mounted on said frame engaging said keepers for holding said top bar in predetermined position within said frame, and wedge shaped members carried by the lower end of said levers arranged to be drawn between said pressure rolls by the rotation thereof on the abnormal separation of said rolls.

5. A. clothes wringer, comprising a frame having pressure rolls and pressure means for said rolls, retaining means for normally holding said pressure means in predetermined position, and wedging members arranged to be drawn between said pressure rolls by the abnormal separation thereof having connection with the pressure retaining means for releasing said pressure means.

6. A clothes wringer, comprising a frame having pressure rolls and pressure means for said rolls mounted therein, a topbar movably mounted in said frame, levers for holding said top bar in predetermined position, wedging members carried by said levers arranged in position to be drawn between said rolls on the abnormal separation thereof, springs for initially moving said wedging members in position to be moved by the rotation of said rolls for causing said levers to be moved out of engagement with said top bar.

7. A clothes wringer, comprising a frame having pressure rolls and pressure means for said rolls mounted therein, a top bar movably mounted in said frame having means for adjusting said pressure means,

keepers carried by said top bar, pivoted levers mounted on said frame provided with angled ends, movably mounted members mounted on-said angled ends engaging said keepers, said levers being provided with wedge shaped members arranged in position to be drawn between said rolls by the rotation of said rolls on the abnormal separation thereof.

In testimony whereof I hereunto afiix my signature.

REA P. WRIGHT. 

